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You searched for: mediatype:movies AND collection:nasaeclips AND subject:"Global Positioning System"
[movies]How Global Positioning System Works
In this NASA video segment a NASA expert explains the inner workings of the Global Positioning System (GPS). Learn more about trilateration and how four satellites work together to identify exact locations on Earth with the help of a two-dimensional model.
Keywords: satellite; global positioning system; GPS; technology; aviation
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